Not sure why I am not able to check whether > 1 for 'error':
SELECT @RESULTS = ISNULL(@RESULTS + '', '') + CHAR(13) + 'Phone Number: ' + LEFT(PhoneNum, 3) + '-' + SUBSTRING(PhoneNum, 4, 3) + '-' + SUBSTRING(PhoneNum, 7, 4) + ' Call Date: ' + convert(varchar(20),CallDateTime,101) + ' HistoryID...